Alright, there is this girl who is like a little sis to me and I would do anything to defend (read take a bullett). She started dating this guy I never really liked, and now I've found out that he gets mad if something doesnt go his way and hits and pushes, like hes really left bruises on her. I don't know how to handle this and you have no idea how much self control it takes to not deck him everytime I see him. What do I do, just take it to him calmly, or do I just let it go, or do I beat his ass?